Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

July 5, 2011Sumter County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 5, 2011, 2:44 PM CDT for Sumter County, Alabama. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 5, 2011, 2:44 PM CDT (19:44 UTC)
Expired
Jul 5, 2011, 3:30 PM CDT
In force
46 min
Issued by
NWS Birmingham, AL

County Sumter County, AL

The radar

The Birmingham radar (KBMX), 134 km from the middle of the area, began a volume at 19:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.7 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2011-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 482 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2011-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
482 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1113 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this special weather statement went out at Jul 5, 11:40 AM CDT, 3 hours 4 minutes earlier.

Area forecast discussion, Jul 5, 11:40 AM CDT, 3 hours 4 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1140 AM CDT TUE JUL 5 2011

.UPDATE...MORNING WEATHER AND AVIATION DISCUSSION.

&&

.DISCUSSION...

HAVE MADE A FEW CHANGES TO THE FORECAST FOR THIS AFTERNOON...AS
SEVERAL BOUNDARIES ARE BECOMING CLEARER AS THE LATE MORNING HOURS
CONTINUE.  THIS WILL PROVIDE A NICE FORCING MECHANISM FOR AFTERNOON
AND EVENING CONVECTION...WHICH SHOULD BE PLENTIFUL...MUCH LIKE
YESTERDAY.  WENT AHEAD AND INCREASED POPS BY 10 OR MORE IN MOST
PLACES...AS THE COVERAGE WILL LIKELY BE MORE SUBSTANTIAL THAN THE
ORDINARY SUMMER CONVECTIVE AIRMASS.  STORMS ONCE AGAIN COULD BECOME
ISOLATED OR SCATTERED STRONG TO SEVERE...AND A FEW WARNINGS ARE
ANTICIPATED...AGAIN MUCH LIKE YESTERDAY AND CONTINUING FOR MUCH OF
THE WORK WEEK.

&&

.AVIATION...18Z TAF DISCUSSION.

SEVERAL BOUNDARIES WERE AGAIN NOTED ACROSS CENTRAL ALABAMA TODAY. IT
IS UNCLEAR EXACTLY WHERE THUNDERSTORMS WILL INITIATE...BUT ALL SITES
WILL LIKELY SEE SOME ACTIVITY THIS AFTERNOON. SOME OF THE STORMS
COULD HAVE STRONG WINDS AND HEAVY RAINFALL. RAINFALL COULD REDUCE
VISIBILITIES...BUT NOT CONFIDENT ENOUGH AS TO WHERE THE HEAVIEST
SHOWERS WILL OCCUR. ALL ACTIVITY SHOULD DISSIPATE SHORTLY AFTER
SUNSET. MVFR VISIBILITES WILL BE POSSIBLE AGAIN TOMORROW MORNING.
AREA SOUNDINGS ARE SHOWING AMPLE MOISTURE SO WITH CALM WINDS AND
LITTLE CLOUD COVER...FOG SHOULD HAVE NO PROBLEM FORMING. ONCE THE
SUN RISES...FOG SHOULD MIX OUT AND CLOUDS WILL LIKELY BEGIN TO
DEVELOP.

NOTICE...KEET TAF WILL HAVE (AMD LTD TO VIS WIND AND WX) AMENDED TO
THE END OF THE FORECAST UNTIL FURTHER NOTICE. THE CEILOMETER DATA
WILL BE GOING THROUGH NUMEROUS TESTS AND MONITORED FOR ACCURACY.

&&

.BMX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

17/73
Hazardous weather outlook, Jul 5, 1:16 PM CDT, 1 hour 28 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
116 PM CDT TUE JUL 5 2011

ALZ011>015-017>050-061816-
AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE-
CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE-
JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY-
PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA-
TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON-
116 PM CDT TUE JUL 5 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE
NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP DURING THE
HEATING OF THE DAY...MAINLY BETWEEN 1 PM AND 8 PM.  THE STORMS COULD
PRODUCE WIND GUSTS OF 50 TO 60 MPH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT
EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 5, 10:25 AM CDT, 4 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1025 AM CDT TUE JUL 05 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     TSTM WND DMG     WEST BLOCTON            33.14N 87.13W
07/04/2011                   BIBB               AL   PUBLIC

            TREES DOWN WITH POWERLINES DAMAGED...ALSO SMALL HAIL
            REPORTED IN AND NORTH OF WEST BLOCTON

&&

KLAWS
Local storm report, Jul 5, 10:45 AM CDT, 3 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1045 AM CDT TUE JUL 05 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0410 PM     HAIL             3 ENE BANKHEAD LOCK AND 33.47N 87.32W
07/04/2011  E0.25 INCH       JEFFERSON          AL   PUBLIC

            REPORTED ALONG LOCK 17 RD.

0548 PM     TSTM WND DMG     5 WNW SULLIGENT         33.92N 88.21W
07/04/2011                   LAMAR              AL   PUBLIC

            ONE TREE DOWN ALONG BLAYLOCK RD NEAR THE STATE LINE.

&&

GOLDEN
Local storm report, Jul 5, 1:55 PM CDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
155 PM CDT TUE JUL 05 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     TSTM WND DMG     BLUFFPORT               32.59N 88.12W
07/04/2011                   SUMTER             AL   FIRE DEPT/RESCUE

            TREES REPORTED DOWN

&&

KLAWS
Special weather statement, Jul 5, 2:08 PM CDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
208 PM CDT TUE JUL 5 2011

ALZ030-051945-
SUMTER AL-
208 PM CDT TUE JUL 5 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SUMTER COUNTY UNTIL
245 PM CDT...

AT 208 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR KINTERBISH...OR 11 MILES SOUTHEAST OF CUBA.  THIS
STORM WAS NEARLY STATIONARY.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  CUBA...
  KINTERBISH...
  WARD...
  WHITFIELD...
  I 20 WELCOME CENTER AT CUBA...

&&

LAT...LON 3245 8841 3245 8807 3240 8804 3237 8805
      3237 8803 3231 8800 3230 8832 3230 8842
      3231 8843 3234 8843
TIME...MOT...LOC 1908Z 179DEG 2KT 3234 8823

19
Special weather statement, Jul 5, 2:29 PM CDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
229 PM CDT TUE JUL 5 2011

ALZ032-039-052015-
HALE AL-MARENGO AL-
229 PM CDT TUE JUL 5 2011

...SIGNIFICANT WEATHER ADVISORY FOR MARENGO AND SOUTHWESTERN HALE
COUNTIES UNTIL 315 PM CDT...

AT 230 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM PUTNAM TO VINELAND...AND
MOVING NORTH AT 10 TO 15 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  LINDEN...
  DEMOPOLIS...
  PUTNAM...
  VINELAND...
  SURGINER...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3208 8805 3218 8801 3229 8803 3231 8794
      3238 8805 3244 8803 3252 8784 3255 8784
      3252 8782 3255 8779 3254 8753 3231 8753
      3231 8748 3226 8748 3225 8752 3214 8752
      3212 8762 3201 8762 3199 8811 3206 8812
TIME...MOT...LOC 1929Z 187DEG 6KT 3198 8808 3199 8763

56
Special weather statement, Jul 5, 2:44 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
244 PM CDT TUE JUL 5 2011

ALZ030-039-052030-
MARENGO AL-SUMTER AL-
244 PM CDT TUE JUL 5 2011

...SIGNIFICANT WEATHER ADVISORY FOR SUMTER AND NORTHWESTERN MARENGO
COUNTIES UNTIL 330 PM CDT...

AT 242 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM 5 MILES NORTH OF KINTERBISH...OR 7 MILES SOUTH OF
YORK...MOVING NORTH AT 15 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  YORK...
  LIVINGSTON...
  COATOPA...
  DUG HILL...
  THE UNIVERSITY OF WEST ALABAMA...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3285 8836 3287 8818 3286 8815 3283 8817
      3284 8814 3280 8806 3278 8811 3271 8808
      3269 8811 3269 8806 3264 8808 3259 8806
      3263 8793 3261 8784 3260 8784 3261 8788
      3254 8787 3254 8783 3231 8802 3231 8843
TIME...MOT...LOC 1944Z 199DEG 12KT 3241 8826

56

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 2:08 PM CDTSpecial Weather StatementBMXSumter37 min
Jul 5, 2:16 PM CDTSevere Thunderstorm WarningBMXLowndes29 min
Jul 5, 2:29 PM CDTSpecial Weather StatementBMXMarengo46 min
Jul 5, 3:12 PM CDTSpecial Weather StatementBMXMarengo48 min
Jul 5, 3:54 PM CDTSpecial Weather StatementBMXAutauga36 min
Jul 5, 4:09 PM CDTSpecial Weather StatementBMXDallas, Hale, Perry51 min
Jul 5, 5:01 PM CDTSpecial Weather StatementBMXClay44 min
Jul 5, 5:33 PM CDTSpecial Weather StatementBMXShelby42 min
Jul 5, 5:43 PM CDTSevere Thunderstorm WarningBMXChilton, Coosa, Shelby, Talladega32 min
Jul 5, 5:49 PM CDTSpecial Weather StatementBMXJefferson26 min
Jul 5, 6:15 PM CDTSpecial Weather StatementBMXJefferson45 min
Jul 5, 6:18 PM CDTSpecial Weather StatementBMXTalladega42 min
Jul 5, 6:22 PM CDTSpecial Weather StatementBMXShelby38 min

Nearby

Special Weather Statements in Alabama, 2011Every special weather statement in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.